Review 20689

Russell C. Jackson (Rusty)
Remove instance specific p4trust and p4ticket files because it is causing you to have to
login again when you change the server.id, and that isn't needed when using auth.id and
rpl.forward.login.

If you are using a shared depotdata volume, just be sure to use the auth.id and
rpl.forward.login and you will not have a problem with the ticket files since
the login ticket will be the same on all servers.

We never had a problem with the trust files in a shared environment since the trust is
always based on the master server's IP address.
Tip: Use n and p to cycle through the changes.